Łódź historical population evolution stats (1793-2016)

Between 1823 and 1873, the city's population doubled every ten years. The years 1870–1890 marked the period of most intense industrial development in the city's modern history. Many of the industrialists were of Jewish ethnicity. Łódź also soon became a major centre of the socialist movement. In 1892 a huge strike paralyzed most of the factories and manufacturing plants. According to Russian census of 1897, out of the total population of 315,000, Jews constituted 99,000 (around 31% percent).[7] During the 1905 Revolution, in what became known as the June Days or Łódź insurrection, Tsarist police killed hundreds of workers.[8] By 1913, the Poles constituted almost half of the population (49.7%), the German minority had fallen to 14.8%, and the Jews made up 34%, out of some 506,000 inhabitants.[4]

Reference 1: Inhabitants.

Reference 2: 1793, 1806, 1830, 1850, 1880, 1905, 1925, 1990, 2003, 2007, 2009, 2013 and 2016.

Source: http://en.wikipedia.org/wiki/%C5%81%C3%B3d%C5%BA